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simultaneous Meaning, Definition & Usage

  1. adjective satellite occurring or operating at the same time
    concurrent; co-occurrent; coinciding; coincident; cooccurring; coincidental.
    • a series of coincident events
WordNet

Si`mul*ta"ne*ous adjective
Etymology
LL. simultim at the same time, fr. L. simul. See Simulate.
Definitions
  1. Existing, happening, or done, at the same time; as, simultaneous events. -- Si`mul*ta"ne*ous*ly, adv. -- Si`mul*ta"ne*ous*ness, n.

Webster 1913